This is an ab killer – if you thought ab wheel roll-outs were hard…
The hardest part of this exercise I reckon is getting your feet into the TRX handles! Best bet is to kneel down whilst putting your feet into the cradles then walk out your hands so they’re stacked under your shoulders – into a suspended plank (!). Make sure your core is engaged so your hips don’t sag down as this will put too much pressure on your back.
Once in, just do the mountain climber movement you’re used to doing with the sliding disks; bring one knee forwards, then alternate right knee, left knee. Remember to keep your knees close to the floor and your back straight.
Targets: Abs, glutes, quads, hamstrings, shoulders, chest, and upper back
Apparently the TRX (short for total-body resistance exercise) was invented by a former U.S. Navy SEAL and turns every exercise into a challenge for the core by using two readily accessible resources; gravity and your own bodyweight